diff options
Diffstat (limited to 'drivers/media/video/pvrusb2/pvrusb2-v4l2.c')
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-v4l2.c | 1413 |
1 files changed, 0 insertions, 1413 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-v4l2.c b/drivers/media/video/pvrusb2/pvrusb2-v4l2.c deleted file mode 100644 index f344aed32a93..000000000000 --- a/drivers/media/video/pvrusb2/pvrusb2-v4l2.c +++ /dev/null @@ -1,1413 +0,0 @@ -/* - * - * - * Copyright (C) 2005 Mike Isely <isely@pobox.com> - * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -#include <linux/kernel.h> -#include <linux/slab.h> -#include <linux/version.h> -#include "pvrusb2-context.h" -#include "pvrusb2-hdw.h" -#include "pvrusb2.h" -#include "pvrusb2-debug.h" -#include "pvrusb2-v4l2.h" -#include "pvrusb2-ioread.h" -#include <linux/videodev2.h> -#include <linux/module.h> -#include <media/v4l2-dev.h> -#include <media/v4l2-common.h> -#include <media/v4l2-ioctl.h> - -struct pvr2_v4l2_dev; -struct pvr2_v4l2_fh; -struct pvr2_v4l2; - -struct pvr2_v4l2_dev { - struct video_device devbase; /* MUST be first! */ - struct pvr2_v4l2 *v4lp; - struct pvr2_context_stream *stream; - /* Information about this device: */ - enum pvr2_config config; /* Expected stream format */ - int v4l_type; /* V4L defined type for this device node */ - enum pvr2_v4l_type minor_type; /* pvr2-understood minor device type */ -}; - -struct pvr2_v4l2_fh { - struct pvr2_channel channel; - struct pvr2_v4l2_dev *pdi; - enum v4l2_priority prio; - struct pvr2_ioread *rhp; - struct file *file; - struct pvr2_v4l2 *vhead; - struct pvr2_v4l2_fh *vnext; - struct pvr2_v4l2_fh *vprev; - wait_queue_head_t wait_data; - int fw_mode_flag; - /* Map contiguous ordinal value to input id */ - unsigned char *input_map; - unsigned int input_cnt; -}; - -struct pvr2_v4l2 { - struct pvr2_channel channel; - struct pvr2_v4l2_fh *vfirst; - struct pvr2_v4l2_fh *vlast; - - struct v4l2_prio_state prio; - - /* streams - Note that these must be separately, individually, - * allocated pointers. This is because the v4l core is going to - * manage their deletion - separately, individually... */ - struct pvr2_v4l2_dev *dev_video; - struct pvr2_v4l2_dev *dev_radio; -}; - -static int video_nr[PVR_NUM] = {[0 ... PVR_NUM-1] = -1}; -module_param_array(video_nr, int, NULL, 0444); -MODULE_PARM_DESC(video_nr, "Offset for device's video dev minor"); -static int radio_nr[PVR_NUM] = {[0 ... PVR_NUM-1] = -1}; -module_param_array(radio_nr, int, NULL, 0444); -MODULE_PARM_DESC(radio_nr, "Offset for device's radio dev minor"); -static int vbi_nr[PVR_NUM] = {[0 ... PVR_NUM-1] = -1}; -module_param_array(vbi_nr, int, NULL, 0444); -MODULE_PARM_DESC(vbi_nr, "Offset for device's vbi dev minor"); - -static struct v4l2_capability pvr_capability ={ - .driver = "pvrusb2", - .card = "Hauppauge WinTV pvr-usb2", - .bus_info = "usb", - .version = LINUX_VERSION_CODE, - .capabilities = (V4L2_CAP_VIDEO_CAPTURE | - V4L2_CAP_TUNER | V4L2_CAP_AUDIO | V4L2_CAP_RADIO | - V4L2_CAP_READWRITE), -}; - -static struct v4l2_fmtdesc pvr_fmtdesc [] = { - { - .index = 0, - .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, - .flags = V4L2_FMT_FLAG_COMPRESSED, - .description = "MPEG1/2", - // This should really be V4L2_PIX_FMT_MPEG, but xawtv - // breaks when I do that. - .pixelformat = 0, // V4L2_PIX_FMT_MPEG, - } -}; - -#define PVR_FORMAT_PIX 0 -#define PVR_FORMAT_VBI 1 - -static struct v4l2_format pvr_format [] = { - [PVR_FORMAT_PIX] = { - .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, - .fmt = { - .pix = { - .width = 720, - .height = 576, - // This should really be V4L2_PIX_FMT_MPEG, - // but xawtv breaks when I do that. - .pixelformat = 0, // V4L2_PIX_FMT_MPEG, - .field = V4L2_FIELD_INTERLACED, - .bytesperline = 0, // doesn't make sense - // here - //FIXME : Don't know what to put here... - .sizeimage = (32*1024), - .colorspace = 0, // doesn't make sense here - .priv = 0 - } - } - }, - [PVR_FORMAT_VBI] = { - .type = V4L2_BUF_TYPE_VBI_CAPTURE, - .fmt = { - .vbi = { - .sampling_rate = 27000000, - .offset = 248, - .samples_per_line = 1443, - .sample_format = V4L2_PIX_FMT_GREY, - .start = { 0, 0 }, - .count = { 0, 0 }, - .flags = 0, - } - } - } -}; - - - -/* - * This is part of Video 4 Linux API. These procedures handle ioctl() calls. - */ -static int pvr2_querycap(struct file *file, void *priv, struct v4l2_capability *cap) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; - - memcpy(cap, &pvr_capability, sizeof(struct v4l2_capability)); - strlcpy(cap->bus_info, pvr2_hdw_get_bus_info(hdw), - sizeof(cap->bus_info)); - strlcpy(cap->card, pvr2_hdw_get_desc(hdw), sizeof(cap->card)); - return 0; -} - -static int pvr2_g_priority(struct file *file, void *priv, enum v4l2_priority *p) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_v4l2 *vp = fh->vhead; - - *p = v4l2_prio_max(&vp->prio); - return 0; -} - -static int pvr2_s_priority(struct file *file, void *priv, enum v4l2_priority prio) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_v4l2 *vp = fh->vhead; - - return v4l2_prio_change(&vp->prio, &fh->prio, prio); -} - -static int pvr2_g_std(struct file *file, void *priv, v4l2_std_id *std) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; - int val = 0; - int ret; - - ret = pvr2_ctrl_get_value( - pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_STDCUR), &val); - *std = val; - return ret; -} - -int pvr2_s_std(struct file *file, void *priv, v4l2_std_id *std) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; - - return pvr2_ctrl_set_value( - pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_STDCUR), *std); -} - -static int pvr2_querystd(struct file *file, void *priv, v4l2_std_id *std) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; - int val = 0; - int ret; - - ret = pvr2_ctrl_get_value( - pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_STDDETECT), &val); - *std = val; - return ret; -} - -static int pvr2_enum_input(struct file *file, void *priv, struct v4l2_input *vi) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; - struct pvr2_ctrl *cptr; - struct v4l2_input tmp; - unsigned int cnt; - int val; - - cptr = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_INPUT); - - memset(&tmp, 0, sizeof(tmp)); - tmp.index = vi->index; - if (vi->index >= fh->input_cnt) - return -EINVAL; - val = fh->input_map[vi->index]; - switch (val) { - case PVR2_CVAL_INPUT_TV: - case PVR2_CVAL_INPUT_DTV: - case PVR2_CVAL_INPUT_RADIO: - tmp.type = V4L2_INPUT_TYPE_TUNER; - break; - case PVR2_CVAL_INPUT_SVIDEO: - case PVR2_CVAL_INPUT_COMPOSITE: - tmp.type = V4L2_INPUT_TYPE_CAMERA; - break; - default: - return -EINVAL; - } - - cnt = 0; - pvr2_ctrl_get_valname(cptr, val, - tmp.name, sizeof(tmp.name) - 1, &cnt); - tmp.name[cnt] = 0; - - /* Don't bother with audioset, since this driver currently - always switches the audio whenever the video is - switched. */ - - /* Handling std is a tougher problem. It doesn't make - sense in cases where a device might be multi-standard. - We could just copy out the current value for the - standard, but it can change over time. For now just - leave it zero. */ - *vi = tmp; - return 0; -} - -static int pvr2_g_input(struct file *file, void *priv, unsigned int *i) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; - unsigned int idx; - struct pvr2_ctrl *cptr; - int val; - int ret; - - cptr = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_INPUT); - val = 0; - ret = pvr2_ctrl_get_value(cptr, &val); - *i = 0; - for (idx = 0; idx < fh->input_cnt; idx++) { - if (fh->input_map[idx] == val) { - *i = idx; - break; - } - } - return ret; -} - -static int pvr2_s_input(struct file *file, void *priv, unsigned int inp) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; - - if (inp >= fh->input_cnt) - return -EINVAL; - return pvr2_ctrl_set_value( - pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_INPUT), - fh->input_map[inp]); -} - -static int pvr2_enumaudio(struct file *file, void *priv, struct v4l2_audio *vin) -{ - /* pkt: FIXME: We are returning one "fake" input here - which could very well be called "whatever_we_like". - This is for apps that want to see an audio input - just to feel comfortable, as well as to test if - it can do stereo or sth. There is actually no guarantee - that the actual audio input cannot change behind the app's - back, but most applications should not mind that either. - - Hopefully, mplayer people will work with us on this (this - whole mess is to support mplayer pvr://), or Hans will come - up with a more standard way to say "we have inputs but we - don 't want you to change them independent of video" which - will sort this mess. - */ - - if (vin->index > 0) - return -EINVAL; - strncpy(vin->name, "PVRUSB2 Audio", 14); - vin->capability = V4L2_AUDCAP_STEREO; - return 0; -} - -static int pvr2_g_audio(struct file *file, void *priv, struct v4l2_audio *vin) -{ - /* pkt: FIXME: see above comment (VIDIOC_ENUMAUDIO) */ - vin->index = 0; - strncpy(vin->name, "PVRUSB2 Audio", 14); - vin->capability = V4L2_AUDCAP_STEREO; - return 0; -} - -static int pvr2_s_audio(struct file *file, void *priv, struct v4l2_audio *vout) -{ - if (vout->index) - return -EINVAL; - return 0; -} - -static int pvr2_g_tuner(struct file *file, void *priv, struct v4l2_tuner *vt) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; - - if (vt->index != 0) - return -EINVAL; /* Only answer for the 1st tuner */ - - pvr2_hdw_execute_tuner_poll(hdw); - return pvr2_hdw_get_tuner_status(hdw, vt); -} - -static int pvr2_s_tuner(struct file *file, void *priv, struct v4l2_tuner *vt) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; - - if (vt->index != 0) - return -EINVAL; - - return pvr2_ctrl_set_value( - pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_AUDIOMODE), - vt->audmode); -} - -int pvr2_s_frequency(struct file *file, void *priv, struct v4l2_frequency *vf) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; - unsigned long fv; - struct v4l2_tuner vt; - int cur_input; - struct pvr2_ctrl *ctrlp; - int ret; - - ret = pvr2_hdw_get_tuner_status(hdw, &vt); - if (ret != 0) - return ret; - ctrlp = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_INPUT); - ret = pvr2_ctrl_get_value(ctrlp, &cur_input); - if (ret != 0) - return ret; - if (vf->type == V4L2_TUNER_RADIO) { - if (cur_input != PVR2_CVAL_INPUT_RADIO) - pvr2_ctrl_set_value(ctrlp, PVR2_CVAL_INPUT_RADIO); - } else { - if (cur_input == PVR2_CVAL_INPUT_RADIO) - pvr2_ctrl_set_value(ctrlp, PVR2_CVAL_INPUT_TV); - } - fv = vf->frequency; - if (vt.capability & V4L2_TUNER_CAP_LOW) - fv = (fv * 125) / 2; - else - fv = fv * 62500; - return pvr2_ctrl_set_value( - pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_FREQUENCY),fv); -} - -static int pvr2_g_frequency(struct file *file, void *priv, struct v4l2_frequency *vf) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; - int val = 0; - int cur_input; - struct v4l2_tuner vt; - int ret; - - ret = pvr2_hdw_get_tuner_status(hdw, &vt); - if (ret != 0) - return ret; - ret = pvr2_ctrl_get_value( - pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_FREQUENCY), - &val); - if (ret != 0) - return ret; - pvr2_ctrl_get_value( - pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_INPUT), - &cur_input); - if (cur_input == PVR2_CVAL_INPUT_RADIO) - vf->type = V4L2_TUNER_RADIO; - else - vf->type = V4L2_TUNER_ANALOG_TV; - if (vt.capability & V4L2_TUNER_CAP_LOW) - val = (val * 2) / 125; - else - val /= 62500; - vf->frequency = val; - return 0; -} - -static int pvr2_enum_fmt_vid_cap(struct file *file, void *priv, struct v4l2_fmtdesc *fd) -{ - /* Only one format is supported : mpeg.*/ - if (fd->index != 0) - return -EINVAL; - - memcpy(fd, pvr_fmtdesc, sizeof(struct v4l2_fmtdesc)); - return 0; -} - -static int pvr2_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *vf) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; - int val; - - memcpy(vf, &pvr_format[PVR_FORMAT_PIX], sizeof(struct v4l2_format)); - val = 0; - pvr2_ctrl_get_value( - pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_HRES), - &val); - vf->fmt.pix.width = val; - val = 0; - pvr2_ctrl_get_value( - pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_VRES), - &val); - vf->fmt.pix.height = val; - return 0; -} - -static int pvr2_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *vf) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; - int lmin, lmax, ldef; - struct pvr2_ctrl *hcp, *vcp; - int h = vf->fmt.pix.height; - int w = vf->fmt.pix.width; - - hcp = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_HRES); - vcp = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_VRES); - - lmin = pvr2_ctrl_get_min(hcp); - lmax = pvr2_ctrl_get_max(hcp); - pvr2_ctrl_get_def(hcp, &ldef); - if (w == -1) - w = ldef; - else if (w < lmin) - w = lmin; - else if (w > lmax) - w = lmax; - lmin = pvr2_ctrl_get_min(vcp); - lmax = pvr2_ctrl_get_max(vcp); - pvr2_ctrl_get_def(vcp, &ldef); - if (h == -1) - h = ldef; - else if (h < lmin) - h = lmin; - else if (h > lmax) - h = lmax; - - memcpy(vf, &pvr_format[PVR_FORMAT_PIX], - sizeof(struct v4l2_format)); - vf->fmt.pix.width = w; - vf->fmt.pix.height = h; - return 0; -} - -static int pvr2_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *vf) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; - struct pvr2_ctrl *hcp, *vcp; - int ret = pvr2_try_fmt_vid_cap(file, fh, vf); - - if (ret) - return ret; - hcp = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_HRES); - vcp = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_VRES); - pvr2_ctrl_set_value(hcp, vf->fmt.pix.width); - pvr2_ctrl_set_value(vcp, vf->fmt.pix.height); - return 0; -} - -static int pvr2_streamon(struct file *file, void *priv, enum v4l2_buf_type i) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; - struct pvr2_v4l2_dev *pdi = fh->pdi; - int ret; - - if (!fh->pdi->stream) { - /* No stream defined for this node. This means - that we're not currently allowed to stream from - this node. */ - return -EPERM; - } - ret = pvr2_hdw_set_stream_type(hdw, pdi->config); - if (ret < 0) - return ret; - return pvr2_hdw_set_streaming(hdw, !0); -} - -static int pvr2_streamoff(struct file *file, void *priv, enum v4l2_buf_type i) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; - - if (!fh->pdi->stream) { - /* No stream defined for this node. This means - that we're not currently allowed to stream from - this node. */ - return -EPERM; - } - return pvr2_hdw_set_streaming(hdw, 0); -} - -static int pvr2_queryctrl(struct file *file, void *priv, - struct v4l2_queryctrl *vc) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; - struct pvr2_ctrl *cptr; - int val; - - if (vc->id & V4L2_CTRL_FLAG_NEXT_CTRL) { - cptr = pvr2_hdw_get_ctrl_nextv4l( - hdw, (vc->id & ~V4L2_CTRL_FLAG_NEXT_CTRL)); - if (cptr) - vc->id = pvr2_ctrl_get_v4lid(cptr); - } else { - cptr = pvr2_hdw_get_ctrl_v4l(hdw, vc->id); - } - if (!cptr) { - pvr2_trace(PVR2_TRACE_V4LIOCTL, - "QUERYCTRL id=0x%x not implemented here", - vc->id); - return -EINVAL; - } - - pvr2_trace(PVR2_TRACE_V4LIOCTL, - "QUERYCTRL id=0x%x mapping name=%s (%s)", - vc->id, pvr2_ctrl_get_name(cptr), - pvr2_ctrl_get_desc(cptr)); - strlcpy(vc->name, pvr2_ctrl_get_desc(cptr), sizeof(vc->name)); - vc->flags = pvr2_ctrl_get_v4lflags(cptr); - pvr2_ctrl_get_def(cptr, &val); - vc->default_value = val; - switch (pvr2_ctrl_get_type(cptr)) { - case pvr2_ctl_enum: - vc->type = V4L2_CTRL_TYPE_MENU; - vc->minimum = 0; - vc->maximum = pvr2_ctrl_get_cnt(cptr) - 1; - vc->step = 1; - break; - case pvr2_ctl_bool: - vc->type = V4L2_CTRL_TYPE_BOOLEAN; - vc->minimum = 0; - vc->maximum = 1; - vc->step = 1; - break; - case pvr2_ctl_int: - vc->type = V4L2_CTRL_TYPE_INTEGER; - vc->minimum = pvr2_ctrl_get_min(cptr); - vc->maximum = pvr2_ctrl_get_max(cptr); - vc->step = 1; - break; - default: - pvr2_trace(PVR2_TRACE_V4LIOCTL, - "QUERYCTRL id=0x%x name=%s not mappable", - vc->id, pvr2_ctrl_get_name(cptr)); - return -EINVAL; - } - return 0; -} - -static int pvr2_querymenu(struct file *file, void *priv, struct v4l2_querymenu *vm) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; - unsigned int cnt = 0; - int ret; - - ret = pvr2_ctrl_get_valname(pvr2_hdw_get_ctrl_v4l(hdw, vm->id), - vm->index, - vm->name, sizeof(vm->name) - 1, - &cnt); - vm->name[cnt] = 0; - return ret; -} - -static int pvr2_g_ctrl(struct file *file, void *priv, struct v4l2_control *vc) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; - int val = 0; - int ret; - - ret = pvr2_ctrl_get_value(pvr2_hdw_get_ctrl_v4l(hdw, vc->id), - &val); - vc->value = val; - return ret; -} - -static int pvr2_s_ctrl(struct file *file, void *priv, struct v4l2_control *vc) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; - - return pvr2_ctrl_set_value(pvr2_hdw_get_ctrl_v4l(hdw, vc->id), - vc->value); -} - -static int pvr2_g_ext_ctrls(struct file *file, void *priv, - struct v4l2_ext_controls *ctls) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; - struct v4l2_ext_control *ctrl; - unsigned int idx; - int val; - int ret; - - ret = 0; - for (idx = 0; idx < ctls->count; idx++) { - ctrl = ctls->controls + idx; - ret = pvr2_ctrl_get_value( - pvr2_hdw_get_ctrl_v4l(hdw, ctrl->id), &val); - if (ret) { - ctls->error_idx = idx; - return ret; - } - /* Ensure that if read as a 64 bit value, the user - will still get a hopefully sane value */ - ctrl->value64 = 0; - ctrl->value = val; - } - return 0; -} - -static int pvr2_s_ext_ctrls(struct file *file, void *priv, - struct v4l2_ext_controls *ctls) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; - struct v4l2_ext_control *ctrl; - unsigned int idx; - int ret; - - ret = 0; - for (idx = 0; idx < ctls->count; idx++) { - ctrl = ctls->controls + idx; - ret = pvr2_ctrl_set_value( - pvr2_hdw_get_ctrl_v4l(hdw, ctrl->id), - ctrl->value); - if (ret) { - ctls->error_idx = idx; - return ret; - } - } - return 0; -} - -static int pvr2_try_ext_ctrls(struct file *file, void *priv, - struct v4l2_ext_controls *ctls) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; - struct v4l2_ext_control *ctrl; - struct pvr2_ctrl *pctl; - unsigned int idx; - - /* For the moment just validate that the requested control - actually exists. */ - for (idx = 0; idx < ctls->count; idx++) { - ctrl = ctls->controls + idx; - pctl = pvr2_hdw_get_ctrl_v4l(hdw, ctrl->id); - if (!pctl) { - ctls->error_idx = idx; - return -EINVAL; - } - } - return 0; -} - -static int pvr2_cropcap(struct file *file, void *priv, struct v4l2_cropcap *cap) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; - int ret; - - if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - ret = pvr2_hdw_get_cropcap(hdw, cap); - cap->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; /* paranoia */ - return ret; -} - -static int pvr2_g_crop(struct file *file, void *priv, struct v4l2_crop *crop) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; - int val = 0; - int ret; - - if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - ret = pvr2_ctrl_get_value( - pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPL), &val); - if (ret != 0) - return -EINVAL; - crop->c.left = val; - ret = pvr2_ctrl_get_value( - pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPT), &val); - if (ret != 0) - return -EINVAL; - crop->c.top = val; - ret = pvr2_ctrl_get_value( - pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPW), &val); - if (ret != 0) - return -EINVAL; - crop->c.width = val; - ret = pvr2_ctrl_get_value( - pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPH), &val); - if (ret != 0) - return -EINVAL; - crop->c.height = val; - return 0; -} - -static int pvr2_s_crop(struct file *file, void *priv, struct v4l2_crop *crop) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; - int ret; - - if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - ret = pvr2_ctrl_set_value( - pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPL), - crop->c.left); - if (ret != 0) - return -EINVAL; - ret = pvr2_ctrl_set_value( - pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPT), - crop->c.top); - if (ret != 0) - return -EINVAL; - ret = pvr2_ctrl_set_value( - pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPW), - crop->c.width); - if (ret != 0) - return -EINVAL; - ret = pvr2_ctrl_set_value( - pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPH), - crop->c.height); - if (ret != 0) - return -EINVAL; - return 0; -} - -static int pvr2_log_status(struct file *file, void *priv) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; - - pvr2_hdw_trigger_module_log(hdw); - return 0; -} - -#ifdef CONFIG_VIDEO_ADV_DEBUG -static int pvr2_g_register(struct file *file, void *priv, struct v4l2_dbg_register *req) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; - u64 val; - int ret; - - ret = pvr2_hdw_register_access( - hdw, &req->match, req->reg, - 0, &val); - req->val = val; - return ret; -} - -static int pvr2_s_register(struct file *file, void *priv, struct v4l2_dbg_register *req) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; - u64 val; - int ret; - - val = req->val; - ret = pvr2_hdw_register_access( - hdw, &req->match, req->reg, - 1, &val); - return ret; -} -#endif - -static const struct v4l2_ioctl_ops pvr2_ioctl_ops = { - .vidioc_querycap = pvr2_querycap, - .vidioc_g_priority = pvr2_g_priority, - .vidioc_s_priority = pvr2_s_priority, - .vidioc_s_audio = pvr2_s_audio, - .vidioc_g_audio = pvr2_g_audio, - .vidioc_enumaudio = pvr2_enumaudio, - .vidioc_enum_input = pvr2_enum_input, - .vidioc_cropcap = pvr2_cropcap, - .vidioc_s_crop = pvr2_s_crop, - .vidioc_g_crop = pvr2_g_crop, - .vidioc_g_input = pvr2_g_input, - .vidioc_s_input = pvr2_s_input, - .vidioc_g_frequency = pvr2_g_frequency, - .vidioc_s_frequency = pvr2_s_frequency, - .vidioc_s_tuner = pvr2_s_tuner, - .vidioc_g_tuner = pvr2_g_tuner, - .vidioc_g_std = pvr2_g_std, - .vidioc_s_std = pvr2_s_std, - .vidioc_querystd = pvr2_querystd, - .vidioc_log_status = pvr2_log_status, - .vidioc_enum_fmt_vid_cap = pvr2_enum_fmt_vid_cap, - .vidioc_g_fmt_vid_cap = pvr2_g_fmt_vid_cap, - .vidioc_s_fmt_vid_cap = pvr2_s_fmt_vid_cap, - .vidioc_try_fmt_vid_cap = pvr2_try_fmt_vid_cap, - .vidioc_streamon = pvr2_streamon, - .vidioc_streamoff = pvr2_streamoff, - .vidioc_queryctrl = pvr2_queryctrl, - .vidioc_querymenu = pvr2_querymenu, - .vidioc_g_ctrl = pvr2_g_ctrl, - .vidioc_s_ctrl = pvr2_s_ctrl, - .vidioc_g_ext_ctrls = pvr2_g_ext_ctrls, - .vidioc_s_ext_ctrls = pvr2_s_ext_ctrls, - .vidioc_try_ext_ctrls = pvr2_try_ext_ctrls, -#ifdef CONFIG_VIDEO_ADV_DEBUG - .vidioc_g_register = pvr2_g_register, - .vidioc_s_register = pvr2_s_register, -#endif -}; - -static void pvr2_v4l2_dev_destroy(struct pvr2_v4l2_dev *dip) -{ - struct pvr2_hdw *hdw = dip->v4lp->channel.mc_head->hdw; - enum pvr2_config cfg = dip->config; - char msg[80]; - unsigned int mcnt; - - /* Construct the unregistration message *before* we actually - perform the unregistration step. By doing it this way we don't - have to worry about potentially touching deleted resources. */ - mcnt = scnprintf(msg, sizeof(msg) - 1, - "pvrusb2: unregistered device %s [%s]", - video_device_node_name(&dip->devbase), - pvr2_config_get_name(cfg)); - msg[mcnt] = 0; - - pvr2_hdw_v4l_store_minor_number(hdw,dip->minor_type,-1); - - /* Paranoia */ - dip->v4lp = NULL; - dip->stream = NULL; - - /* Actual deallocation happens later when all internal references - are gone. */ - video_unregister_device(&dip->devbase); - - printk(KERN_INFO "%s\n", msg); - -} - - -static void pvr2_v4l2_dev_disassociate_parent(struct pvr2_v4l2_dev *dip) -{ - if (!dip) return; - if (!dip->devbase.parent) return; - dip->devbase.parent = NULL; - device_move(&dip->devbase.dev, NULL, DPM_ORDER_NONE); -} - - -static void pvr2_v4l2_destroy_no_lock(struct pvr2_v4l2 *vp) -{ - if (vp->dev_video) { - pvr2_v4l2_dev_destroy(vp->dev_video); - vp->dev_video = NULL; - } - if (vp->dev_radio) { - pvr2_v4l2_dev_destroy(vp->dev_radio); - vp->dev_radio = NULL; - } - - pvr2_trace(PVR2_TRACE_STRUCT,"Destroying pvr2_v4l2 id=%p",vp); - pvr2_channel_done(&vp->channel); - kfree(vp); -} - - -static void pvr2_video_device_release(struct video_device *vdev) -{ - struct pvr2_v4l2_dev *dev; - dev = container_of(vdev,struct pvr2_v4l2_dev,devbase); - kfree(dev); -} - - -static void pvr2_v4l2_internal_check(struct pvr2_channel *chp) -{ - struct pvr2_v4l2 *vp; - vp = container_of(chp,struct pvr2_v4l2,channel); - if (!vp->channel.mc_head->disconnect_flag) return; - pvr2_v4l2_dev_disassociate_parent(vp->dev_video); - pvr2_v4l2_dev_disassociate_parent(vp->dev_radio); - if (vp->vfirst) return; - pvr2_v4l2_destroy_no_lock(vp); -} - - -static long pvr2_v4l2_ioctl(struct file *file, - unsigned int cmd, unsigned long arg) -{ - - struct pvr2_v4l2_fh *fh = file->private_data; - struct pvr2_v4l2 *vp = fh->vhead; - struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; - long ret = -EINVAL; - - if (pvrusb2_debug & PVR2_TRACE_V4LIOCTL) - v4l_printk_ioctl(pvr2_hdw_get_driver_name(hdw), cmd); - - if (!pvr2_hdw_dev_ok(hdw)) { - pvr2_trace(PVR2_TRACE_ERROR_LEGS, - "ioctl failed - bad or no context"); - return -EFAULT; - } - - /* check priority */ - switch (cmd) { - case VIDIOC_S_CTRL: - case VIDIOC_S_STD: - case VIDIOC_S_INPUT: - case VIDIOC_S_TUNER: - case VIDIOC_S_FREQUENCY: - ret = v4l2_prio_check(&vp->prio, fh->prio); - if (ret) - return ret; - } - - ret = video_ioctl2(file, cmd, arg); - - pvr2_hdw_commit_ctl(hdw); - - if (ret < 0) { - if (pvrusb2_debug & PVR2_TRACE_V4LIOCTL) { - pvr2_trace(PVR2_TRACE_V4LIOCTL, - "pvr2_v4l2_do_ioctl failure, ret=%ld", ret); - } else { - if (pvrusb2_debug & PVR2_TRACE_V4LIOCTL) { - pvr2_trace(PVR2_TRACE_V4LIOCTL, - "pvr2_v4l2_do_ioctl failure, ret=%ld" - " command was:", ret); - v4l_printk_ioctl(pvr2_hdw_get_driver_name(hdw), - cmd); - } - } - } else { - pvr2_trace(PVR2_TRACE_V4LIOCTL, - "pvr2_v4l2_do_ioctl complete, ret=%ld (0x%lx)", - ret, ret); - } - return ret; - -} - - -static int pvr2_v4l2_release(struct file *file) -{ - struct pvr2_v4l2_fh *fhp = file->private_data; - struct pvr2_v4l2 *vp = fhp->vhead; - struct pvr2_hdw *hdw = fhp->channel.mc_head->hdw; - - pvr2_trace(PVR2_TRACE_OPEN_CLOSE,"pvr2_v4l2_release"); - - if (fhp->rhp) { - struct pvr2_stream *sp; - pvr2_hdw_set_streaming(hdw,0); - sp = pvr2_ioread_get_stream(fhp->rhp); - if (sp) pvr2_stream_set_callback(sp,NULL,NULL); - pvr2_ioread_destroy(fhp->rhp); - fhp->rhp = NULL; - } - - v4l2_prio_close(&vp->prio, fhp->prio); - file->private_data = NULL; - - if (fhp->vnext) { - fhp->vnext->vprev = fhp->vprev; - } else { - vp->vlast = fhp->vprev; - } - if (fhp->vprev) { - fhp->vprev->vnext = fhp->vnext; - } else { - vp->vfirst = fhp->vnext; - } - fhp->vnext = NULL; - fhp->vprev = NULL; - fhp->vhead = NULL; - pvr2_channel_done(&fhp->channel); - pvr2_trace(PVR2_TRACE_STRUCT, - "Destroying pvr_v4l2_fh id=%p",fhp); - if (fhp->input_map) { - kfree(fhp->input_map); - fhp->input_map = NULL; - } - kfree(fhp); - if (vp->channel.mc_head->disconnect_flag && !vp->vfirst) { - pvr2_v4l2_destroy_no_lock(vp); - } - return 0; -} - - -static int pvr2_v4l2_open(struct file *file) -{ - struct pvr2_v4l2_dev *dip; /* Our own context pointer */ - struct pvr2_v4l2_fh *fhp; - struct pvr2_v4l2 *vp; - struct pvr2_hdw *hdw; - unsigned int input_mask = 0; - unsigned int input_cnt,idx; - int ret = 0; - - dip = container_of(video_devdata(file),struct pvr2_v4l2_dev,devbase); - - vp = dip->v4lp; - hdw = vp->channel.hdw; - - pvr2_trace(PVR2_TRACE_OPEN_CLOSE,"pvr2_v4l2_open"); - - if (!pvr2_hdw_dev_ok(hdw)) { - pvr2_trace(PVR2_TRACE_OPEN_CLOSE, - "pvr2_v4l2_open: hardware not ready"); - return -EIO; - } - - fhp = kzalloc(sizeof(*fhp),GFP_KERNEL); - if (!fhp) { - return -ENOMEM; - } - - init_waitqueue_head(&fhp->wait_data); - fhp->pdi = dip; - - pvr2_trace(PVR2_TRACE_STRUCT,"Creating pvr_v4l2_fh id=%p",fhp); - pvr2_channel_init(&fhp->channel,vp->channel.mc_head); - - if (dip->v4l_type == VFL_TYPE_RADIO) { - /* Opening device as a radio, legal input selection subset - is just the radio. */ - input_mask = (1 << PVR2_CVAL_INPUT_RADIO); - } else { - /* Opening the main V4L device, legal input selection - subset includes all analog inputs. */ - input_mask = ((1 << PVR2_CVAL_INPUT_RADIO) | - (1 << PVR2_CVAL_INPUT_TV) | - (1 << PVR2_CVAL_INPUT_COMPOSITE) | - (1 << PVR2_CVAL_INPUT_SVIDEO)); - } - ret = pvr2_channel_limit_inputs(&fhp->channel,input_mask); - if (ret) { - pvr2_channel_done(&fhp->channel); - pvr2_trace(PVR2_TRACE_STRUCT, - "Destroying pvr_v4l2_fh id=%p (input mask error)", - fhp); - - kfree(fhp); - return ret; - } - - input_mask &= pvr2_hdw_get_input_available(hdw); - input_cnt = 0; - for (idx = 0; idx < (sizeof(input_mask) << 3); idx++) { - if (input_mask & (1 << idx)) input_cnt++; - } - fhp->input_cnt = input_cnt; - fhp->input_map = kzalloc(input_cnt,GFP_KERNEL); - if (!fhp->input_map) { - pvr2_channel_done(&fhp->channel); - pvr2_trace(PVR2_TRACE_STRUCT, - "Destroying pvr_v4l2_fh id=%p (input map failure)", - fhp); - kfree(fhp); - return -ENOMEM; - } - input_cnt = 0; - for (idx = 0; idx < (sizeof(input_mask) << 3); idx++) { - if (!(input_mask & (1 << idx))) continue; - fhp->input_map[input_cnt++] = idx; - } - - fhp->vnext = NULL; - fhp->vprev = vp->vlast; - if (vp->vlast) { - vp->vlast->vnext = fhp; - } else { - vp->vfirst = fhp; - } - vp->vlast = fhp; - fhp->vhead = vp; - - fhp->file = file; - file->private_data = fhp; - v4l2_prio_open(&vp->prio, &fhp->prio); - - fhp->fw_mode_flag = pvr2_hdw_cpufw_get_enabled(hdw); - - return 0; -} - - -static void pvr2_v4l2_notify(struct pvr2_v4l2_fh *fhp) -{ - wake_up(&fhp->wait_data); -} - -static int pvr2_v4l2_iosetup(struct pvr2_v4l2_fh *fh) -{ - int ret; - struct pvr2_stream *sp; - struct pvr2_hdw *hdw; - if (fh->rhp) return 0; - - if (!fh->pdi->stream) { - /* No stream defined for this node. This means that we're - not currently allowed to stream from this node. */ - return -EPERM; - } - - /* First read() attempt. Try to claim the stream and start - it... */ - if ((ret = pvr2_channel_claim_stream(&fh->channel, - fh->pdi->stream)) != 0) { - /* Someone else must already have it */ - return ret; - } - - fh->rhp = pvr2_channel_create_mpeg_stream(fh->pdi->stream); - if (!fh->rhp) { - pvr2_channel_claim_stream(&fh->channel,NULL); - return -ENOMEM; - } - - hdw = fh->channel.mc_head->hdw; - sp = fh->pdi->stream->stream; - pvr2_stream_set_callback(sp,(pvr2_stream_callback)pvr2_v4l2_notify,fh); - pvr2_hdw_set_stream_type(hdw,fh->pdi->config); - if ((ret = pvr2_hdw_set_streaming(hdw,!0)) < 0) return ret; - return pvr2_ioread_set_enabled(fh->rhp,!0); -} - - -static ssize_t pvr2_v4l2_read(struct file *file, - char __user *buff, size_t count, loff_t *ppos) -{ - struct pvr2_v4l2_fh *fh = file->private_data; - int ret; - - if (fh->fw_mode_flag) { - struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; - char *tbuf; - int c1,c2; - int tcnt = 0; - unsigned int offs = *ppos; - - tbuf = kmalloc(PAGE_SIZE,GFP_KERNEL); - if (!tbuf) return -ENOMEM; - - while (count) { - c1 = count; - if (c1 > PAGE_SIZE) c1 = PAGE_SIZE; - c2 = pvr2_hdw_cpufw_get(hdw,offs,tbuf,c1); - if (c2 < 0) { - tcnt = c2; - break; - } - if (!c2) break; - if (copy_to_user(buff,tbuf,c2)) { - tcnt = -EFAULT; - break; - } - offs += c2; - tcnt += c2; - buff += c2; - count -= c2; - *ppos += c2; - } - kfree(tbuf); - return tcnt; - } - - if (!fh->rhp) { - ret = pvr2_v4l2_iosetup(fh); - if (ret) { - return ret; - } - } - - for (;;) { - ret = pvr2_ioread_read(fh->rhp,buff,count); - if (ret >= 0) break; - if (ret != -EAGAIN) break; - if (file->f_flags & O_NONBLOCK) break; - /* Doing blocking I/O. Wait here. */ - ret = wait_event_interruptible( - fh->wait_data, - pvr2_ioread_avail(fh->rhp) >= 0); - if (ret < 0) break; - } - - return ret; -} - - -static unsigned int pvr2_v4l2_poll(struct file *file, poll_table *wait) -{ - unsigned int mask = 0; - struct pvr2_v4l2_fh *fh = file->private_data; - int ret; - - if (fh->fw_mode_flag) { - mask |= POLLIN | POLLRDNORM; - return mask; - } - - if (!fh->rhp) { - ret = pvr2_v4l2_iosetup(fh); - if (ret) return POLLERR; - } - - poll_wait(file,&fh->wait_data,wait); - - if (pvr2_ioread_avail(fh->rhp) >= 0) { - mask |= POLLIN | POLLRDNORM; - } - - return mask; -} - - -static const struct v4l2_file_operations vdev_fops = { - .owner = THIS_MODULE, - .open = pvr2_v4l2_open, - .release = pvr2_v4l2_release, - .read = pvr2_v4l2_read, - .ioctl = pvr2_v4l2_ioctl, - .poll = pvr2_v4l2_poll, -}; - - -static struct video_device vdev_template = { - .fops = &vdev_fops, -}; - - -static void pvr2_v4l2_dev_init(struct pvr2_v4l2_dev *dip, - struct pvr2_v4l2 *vp, - int v4l_type) -{ - struct usb_device *usbdev; - int mindevnum; - int unit_number; - struct pvr2_hdw *hdw; - int *nr_ptr = NULL; - dip->v4lp = vp; - - hdw = vp->channel.mc_head->hdw; - usbdev = pvr2_hdw_get_dev(hdw); - dip->v4l_type = v4l_type; - switch (v4l_type) { - case VFL_TYPE_GRABBER: - dip->stream = &vp->channel.mc_head->video_stream; - dip->config = pvr2_config_mpeg; - dip->minor_type = pvr2_v4l_type_video; - nr_ptr = video_nr; - if (!dip->stream) { - pr_err(KBUILD_MODNAME - ": Failed to set up pvrusb2 v4l video dev" - " due to missing stream instance\n"); - return; - } - break; - case VFL_TYPE_VBI: - dip->config = pvr2_config_vbi; - dip->minor_type = pvr2_v4l_type_vbi; - nr_ptr = vbi_nr; - break; - case VFL_TYPE_RADIO: - dip->stream = &vp->channel.mc_head->video_stream; - dip->config = pvr2_config_mpeg; - dip->minor_type = pvr2_v4l_type_radio; - nr_ptr = radio_nr; - break; - default: - /* Bail out (this should be impossible) */ - pr_err(KBUILD_MODNAME ": Failed to set up pvrusb2 v4l dev" - " due to unrecognized config\n"); - return; - } - - memcpy(&dip->devbase,&vdev_template,sizeof(vdev_template)); - dip->devbase.release = pvr2_video_device_release; - dip->devbase.ioctl_ops = &pvr2_ioctl_ops; - { - int val; - pvr2_ctrl_get_value( - pvr2_hdw_get_ctrl_by_id(hdw, - PVR2_CID_STDAVAIL), &val); - dip->devbase.tvnorms = (v4l2_std_id)val; - } - - mindevnum = -1; - unit_number = pvr2_hdw_get_unit_number(hdw); - if (nr_ptr && (unit_number >= 0) && (unit_number < PVR_NUM)) { - mindevnum = nr_ptr[unit_number]; - } - dip->devbase.parent = &usbdev->dev; - if ((video_register_device(&dip->devbase, - dip->v4l_type, mindevnum) < 0) && - (video_register_device(&dip->devbase, - dip->v4l_type, -1) < 0)) { - pr_err(KBUILD_MODNAME - ": Failed to register pvrusb2 v4l device\n"); - } - - printk(KERN_INFO "pvrusb2: registered device %s [%s]\n", - video_device_node_name(&dip->devbase), - pvr2_config_get_name(dip->config)); - - pvr2_hdw_v4l_store_minor_number(hdw, - dip->minor_type,dip->devbase.minor); -} - - -struct pvr2_v4l2 *pvr2_v4l2_create(struct pvr2_context *mnp) -{ - struct pvr2_v4l2 *vp; - - vp = kzalloc(sizeof(*vp),GFP_KERNEL); - if (!vp) return vp; - pvr2_channel_init(&vp->channel,mnp); - pvr2_trace(PVR2_TRACE_STRUCT,"Creating pvr2_v4l2 id=%p",vp); - - vp->channel.check_func = pvr2_v4l2_internal_check; - - /* register streams */ - vp->dev_video = kzalloc(sizeof(*vp->dev_video),GFP_KERNEL); - if (!vp->dev_video) goto fail; - pvr2_v4l2_dev_init(vp->dev_video,vp,VFL_TYPE_GRABBER); - if (pvr2_hdw_get_input_available(vp->channel.mc_head->hdw) & - (1 << PVR2_CVAL_INPUT_RADIO)) { - vp->dev_radio = kzalloc(sizeof(*vp->dev_radio),GFP_KERNEL); - if (!vp->dev_radio) goto fail; - pvr2_v4l2_dev_init(vp->dev_radio,vp,VFL_TYPE_RADIO); - } - - return vp; - fail: - pvr2_trace(PVR2_TRACE_STRUCT,"Failure creating pvr2_v4l2 id=%p",vp); - pvr2_v4l2_destroy_no_lock(vp); - return NULL; -} - -/* - Stuff for Emacs to see, in order to encourage consistent editing style: - *** Local Variables: *** - *** mode: c *** - *** fill-column: 75 *** - *** tab-width: 8 *** - *** c-basic-offset: 8 *** - *** End: *** - */ |